Book Image

IBM Sametime 8.5.2 Administration Guide

Book Image

IBM Sametime 8.5.2 Administration Guide

Overview of this book

Sametime 8.5.2 delivers a state-of-the-art enterprise-ready instant messaging and meeting service. This Administrator's Guide navigates through the range of Sametime server components and features, providing you with the essential information required to install, administer and troubleshoot your Sametime 8.5.2 environment.The IBM Sametime 8.5.2 Administration Guide cuts through the complexity of architecting, installing, and administering all the moving parts of the latest version of Sametime. With this book, you will be able to make the necessary decisions when it comes to choosing which server components you need and how to install them to get the most performance and maintainability from the software. Starting with an overview of Sametime 8.5.2, you will then dive into each server component. You learn what each one does, why it might be needed in your environment, and what you need to have in place to run it. By the end, you’ll have Sametime running and configured properly for your particular situation.With flexibility comes complexity-- but not with this guide. You’ll learn how different architectures are possible and how to prepare properly for the installation of Sametime. You’ll learn how to install the servers in the right order so that you can maintain and expand your environment in the future. You’ll also find out how best to monitor your Sametime environment for issues, as well as how to effectively troubleshoot those problems so that you can quickly get Sametime running again.The IBM Sametime 8.5.2 Administration Guide is the perfect one-stop resource for learning important installation and configuration details quickly and easily.
Table of Contents (24 chapters)
IBM Sametime 8.5.2 Administration Guide
Credits
Foreword
About the Authors
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
WebSphere Application Server-Related Resources

Understanding NAT and Sametime


Network address translation (NAT) is the method for modifying the IP address information of IP packet headers in transit across a routing device. This is generally done to prevent internal IPs from being viewable to external network devices. Routers manage the translation so that when requests come back, they are translated back to the internal or private IP addresses. Because Sametime client connections, especially those using audio and video, require a client-to-client connection, a technique called NAT transferral is used to maintain connections traversing NAT gateways. The Sametime TURN Server acts as a NAT transversal server and provides this capability so that if your users are attempting to connect to your Media Server outside your NAT'ed network, they will be able to successfully connect. An example of a TURN Server topology can be found at:

http://www.lotus.com/ldd/stwiki.nsf/dx/TURN_Server_topologies_st852

http://tinyurl.com/sametime-c004

We discussed the TURN Server in earlier chapters. However, we provide some additional resources here for understanding how to troubleshoot a TURN Server:

Troubleshooting a Sametime TURN Server:

http://www.lotus.com/ldd/stwiki.nsf/dx/Troubleshooting_a_Sametime_TURN_Server_st852

http://tinyurl.com/sametime-c005